Shopify Google Shopping setup – from Merchant Center to your first ads

How Shopify Google Shopping works: free listings and ads

A Shopify Google Shopping setup sends your product data to Google Merchant Center, which then shows your items on the Shopping tab and in product blocks in search. There are two kinds of placement:

• Free listings: approved products can appear on the Shopping tab and other surfaces at no cost
• Shopping ads: paid, cost-per-click placements with image and price, often at the top of search results. Today they mostly run through Performance Max campaigns in Google Ads

Both start from the same Merchant Center data. Weak data limits visibility in free and paid placements alike, so the first job is a store and a feed that pass review. If you want to try the free placements first, see Google free listings.

Store requirements to fix before you connect Merchant Center

The most common early blocker is an account-level review. Google checks whether shoppers can buy from you with confidence, and it looks at the whole store before individual products. Check these points first:

• Legal seller page: in Japan, a 特定商取引法 page with business name, address, phone and email, linked from the footer
• Return policy: return window, who pays shipping and how refunds work – also entered in Shopify's policy settings
• Shipping: rates and delivery times that match between the store and Merchant Center
• Matching price and stock: the tax-inclusive price and availability on the product page equal what you send to Google
• Live store: password protection removed and checkout able to complete a real order
• Contact details: a clear way to reach you and who runs the store

One missing item can trigger a "misrepresentation" suspension, and review requests are limited in number and timing. Getting everything in place before you apply is the fastest route.

Connecting Shopify and Merchant Center with the Google & YouTube app

Shopify's official Google & YouTube app syncs products, creates or links Merchant Center and can launch Google Ads campaigns from your admin. For most stores it is the right way in.

• Install the app from the Shopify App Store
• Connect a Google account that belongs to the store owner
• Link or create Merchant Center – domain verification happens here
• Set country and language: for Japan, Japan, Japanese and JPY
• Sync shipping from Shopify or set it directly in Merchant Center
• Sync and review products: after a few days, check approval status and warnings in Merchant Center

"Under review" right after syncing is normal. For disapproved items, read the reason, fix the product in Shopify and the next sync picks it up. For a closer look at the Merchant Center screens and manual feeds, see Google Merchant Center setup.

Product data that gets shown – and selling on BASE

Once approved, visibility depends on the content of your data. Google matches search terms against product information, so shape it at the Shopify product level:

• Titles: brand, product name, material, size or color – the words shoppers type, near the start
• Images: a clear product photo on a plain background as the main image, without text or logo overlays
• JAN code (GTIN): for branded goods, enter it in Shopify's barcode field. For your own products without codes, make brand and model number clear
• Variants: colors and sizes as Shopify variants, each with its own image and stock
• Descriptions: material, dimensions, use and care – what people compare before buying

On BASE the logic is the same: product data goes into Merchant Center. BASE offers an app in BASE Apps for linking products with Google; its features can change, so check the current guidance when you set it up. Anything the app cannot cover can be added as supplemental data in Merchant Center. The store requirements above apply to BASE as well.

Launching Shopping ads and common mistakes

When products are approved and stable in free listings, ads can widen your reach. You can create a campaign from the app, while fine-tuning happens in Google Ads. Prepare these first:

• Conversion tracking: Google tag and GA4 recording purchases and add-to-cart before any spend
• A focused product set: start with items that have healthy margins and steady stock
• Budget and time: campaigns need data to learn, so set a daily budget and judge results over weeks
• Ownership: Merchant Center and Google Ads in the store owner's name, with access granted to partners

Typical mistakes: running ads with no tracking, sale prices that do not reach the feed and cause disapprovals, and spend flowing to out-of-stock items. For the wider picture, see ads for e-commerce stores.

How UNANOBO sets up Google Shopping: a free demo of your store first

Before you commit, UNANOBO builds a free demo: product pages from your current store and brand, shaped for Google Shopping – titles, image order, and where the legal seller page and return policy sit. You see on screen what review and visibility need.

If you go ahead, the founder personally handles Merchant Center, the app connection, product data fixes, Shopping ads setup and improvements after launch. The process is free demo, feedback, launch, growth, and everything runs by message in Japanese or English.